As the title says, I want to get the wireless signal strength from adapter on Windows CE, VB.Net, Visual studio 2008.
I believe opennetcf.net library has to be used.
I'm not going to write any code for you but maybe I can at least point you in the right direction. In the beta documentation for OpenNETCF.Net.NetworkInformation you'll see a class called WirelessNetworkInterface which has a SignalStrength property which returns a SignalStrength object.